(Invited) Printed High Performance Flexible Device Sheet

Due to the unique properties of nanomaterials such as quantum effect, high performance, and mechanical flexibility, devices based on the nanomaterials have attracted great attention for a variety of applications. One of the potential application is for flexible electronics utilizing the characteristics of high performance and mechanical flexibility. By printing or transferring inorganic nanomaterials, high performance transistors and sensors can be readily fabricated on an amorphous sheet such as plastic substrate. However, the patterning methods of nanomaterials are still under development, and many approaches are conducted to make large-scale and uniform patterning on user defined substrates. To realize nanomaterial patterning on a flexible substrate, we have also developed some nanomaterial transfer and printing techniques depending on the dimensional structure of the materials. In this talk, flexible complementary metal-oxide-semiconductor (CMOS) circuits and some physical sensors are introduced using our printing methods. The devices are mainly fabricated by using inorganic nanomaterials. However, organic materials are also used for sensors. By combining both advantages of inorganic and organic materials, high performance transistors with high voltage gain and low power consumption and high sensitive sensors are demonstrated.